Coil Spring Rates (PPI) and Free Lengths

[Vincentghannah]

I put this info together. Hopefully someone can use it. I do not know if these coils will fit in ranger coil buckets or not so do your own research there. I have heard of people using these coils.

What are they?	Part Number	PPI (pounds per inch) AKA spring rate	Free Length
Stock Ranger Coil		500	13
Skyjacker Ranger Leveling Coils For Standard Cab	Skyjacker 132	393	14 7/16
Skyjacker Ranger Leveling Coils For Extended Cab	Skyjacker 132x	393	15 7/16
Skyjacker Ranger 4” lift coils	Skyjacker 134	480	17
Skyjacker Ranger 6” lift coils	Skyjacker 136	435	18 7/8
Skyjacker Ranger 8” lift coils	Skyjacker 138	430	21
Skyjacker Jeep Cherokee Lift Coils 6”	Skyjacker JC60F	230	21 15/16
Skyjacker Jeep Cherokee Lift Coils 8”	Skyjacker JC80F	235	23
Skyjacker Jeep Wrangler Lift Coil 6”	Skyjacker TJ60F	180	22
Skyjacker Jeep Wrangler Lift Coil 8”	Skyjacker TJ80F	227	22.5
Skyjacker 80-96 F150 6” Lift	Skyjacker 186	623	20 1/8
Skyjacker 80-96 F150 8” Lift	Skyjacker 188	560	22 1/4
Skyjacker 79 F150 2” lift	Skyjacker 172	330 400 variable rate	18
Skyjacker 79 F150 4” lift	Skyjacker 174	525	19 1/2
Skyjacker 79 F150 6” lift	Skyjacker 176	452	21
Skyjacker 79 F150 9” lift	Skyjacker 179	550	23
Rough Country Ranger Leveling Coils	9264-4	445	14 1/8
Rough Country Ranger 4” lift	9261	435	18 1/8
Deaver 7” EB or 70s F150 Superflex coils	BB6 Coil	300	25
Deaver 5” EB or 70s F150 Superflex coils	BB4 Coil	300	23
EB Coil Spring Stock	CC816	366	18
JBG EB Coil 1” lift	112	320	18.5
JBG EB 4” lift	114	415	20
JBG EB 6” lift	116	400	22 1/4
JBG EB 9” lift	120	460	23 3/4
BDS 6” Ranger Coil	?	410	20
Deaver 5.5” 1980 Bronco Coil	1645HF64C or csf64 (found 2 numbers)	?	22
Deaver 5.5 cherokee XJ coil	Cs09	?	?

 

[sgtsandman]

You might want to post this in the articles submission section for the tech library. What do you think @Jim Oaks?

 

[ericbphoto]

Excellent chart! I've been trying to research that myself lately. It is very a frustrating process to track that stuff down. Thank you for your work.

 

[SenorNoob]

Definitely needs to be in library!

 

[bobbywalter]

Coil turns and wire diameter are the missing critical points. Great list though..


There is a RC 6in xj that's 140 ish ppi and 24.5 free. Have to count the turns and measure wd.